George h



(No Model.)

G. H. F. SGHRADER. VALVED'STOPPBR POB. WATER BAGS.

No. 476,421. PatentedJune 7, 1892.

INVENTOR xfa By /zzs zzomeys, mmmm 99 WITNES'SES:

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NiTnD STATES GEORGE H. F. SOHRADER, OF NEV YORK, N. Y.

VALVED STOPPER FOR WATER-BAGS.

SPECIFICATION forming part of Letters Patent Noo 476,421, dated June '7, 1892.

Application iiled December 3, 1891. Serial No. 413,879. (No model.)

To @ZZ whom, it may concern,.-

Beit known that I, GEORGE H. F. SCHRADER, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful improvements in Valved Stoppers for Tater-Bags, of which the following is a specification.

This invention relates to stoppers for hotwater bags or water-bottles. Such bags are commonly made of liexible india-rubber, pro vided with a neck through which to fill them and with a stopper for tightly closing the neck.

The obj ect of my invention is to provide means whereby a hot-water bag may be conveniently utilized as a fountain-syringe.

It has heretofore been a common practice to construct hotwater bags so as to adapt them to such use. To this end the bag has been provided with two Stoppers, one an ordinary stopper for closing it tight when using it asawater-bag and the other a stopper with an opening through it and an external nozzle over which the iiexible tube of asyringe may be drawn, so that by lling the bag and screwing in this nozzle-stopper and applying the tube upon the nozzle and then inverting and elevating the bag the water therein is caused to iiow out through the tube and syringe. According to another construction the bag has been provided with a single stopper formed with an external nozzle and an opening through it and with a solid screw-plug for closing the opening to make the stoppertight when using the bag as a water-bag; but when using it as a fountain-syringe this plug is removed from the nozzle and the syringe-tube drawn thereover. The valved stopper provided by my present invention affords a more convenient construction and avoids the employment of any additional part which is liable to become lost. I construct the stopper to fit the thimble in the neck of the bag in any usual manner, as by a screw-thread, and form the stopper with a threaded opening through it, in which is screwed a threaded tubular valve-Stem, to the inner end of which,

from its seat, so that an outflow-passage is afforded from the stopper through an opening in the stem into the interior thereof and out through the stem. The outer end of the stem is formed as a nozzle adapted for attachment to a syringe-tnbe, so that by turning the stem so as to open the valve and applying the syringe-tube upon its outer end or nozzle the water-bag to which the stopper is applied is adapted to be used as a fountain-syringe.

Figure l of the accompanying drawings is a vertical section of my improved stopper as applied to a water-bag, showing its valve closed in order to retain water in the bag. Fig. 2 is a similar section showing the bag and stopper inverted, the stopper-valve open, and the syringe-tube applied to the nozzle, thereby adapting the device for use as a fountain-syringe. Fig. 3 is a mid-section of the stopper alone with its valve removed. Fig. 4 is a section showing a modified constructlOIl. t

Referring to the drawings, let A designate an ordinary rubber' hot-water bag or waterbottle constructed, as usual, with a neck a and funnel h.

XVithin the neck a is iixed, as usual, a thimble c, to which is screwed the stopper B. The thimble may be externally threaded and the stopper screwed over it, as shown in Figs. l and 2, or it may be internally threaded and the stopper screwed into it, as shown in Fig. ,both being well-known constructions in the art. In either case a packing ring or washer is provided, (lettered d in Figs. l and 2 and d in Fig. 4;) or, instead of the stopperbeing made to screw to the thimble, as shown, it may be attached in any other way known to mechanics.

The stopper B, instead of consisting merely of a cap, as has heretofore been most common` is formed with an upward extension or head e, through which is formed an axial opening internally threaded, into which is screwed a tubular valve stem C. On the inner end of this stem is :lined a valve-disk D, which thus stands within the hollow of the stopper B, and by screwing the stem outward may be brought against the inner surface of the stopper against which it seats itself to close the opening through the head thereof.

In order to make a tight joint when the I ci.

valve-disk is closed, a yielding packing d, preferably of soft rubber, is introduced between the valve-disk and the inner surface of the stopper, so that when the valve-disk is screwed against its seat this packing shall be compressed between them. The packing may be attached to either the stopper or the valvedisk, but preferably to the former, as shown. Ports or openings ffare formed through the inner end portion of the tubular stem, in order that when the valve is unseated, as in Fig. 2, a water-way may be formed from the interior of the stopper through these ports and out through the hollow of the valve-stem.

In order to enable the valve to be conveniently screwed out and in, the stern projects at its outer end beyond the head of the stopper and is formed with a milled head or flange g. The stem also projects beyond this head and is formed as a nozzle 7L, over which the end of a syringetube E may be drawn, as shown in Fig. 2. To facilitate screwing down or unscrewing the stopper, and also to provide a means for hanging it up, a looped handle i is provided, with its ends pivotally engaged in sockets formed in the head c of the stopper, so that it may be turned down sidewise to bring it out of the way of the tube E when the latter is applied.

In order to use the rubber tube A as a water-bag, it is filled in the usual manner and the stopper is screwed down, the valve in the latter being closed by screwing the stem C outward until the valve D is pressed tightly against the rubber packing d, as shown in Fig. l.

If it is desired to fill the bag with air in order to use it as an air cushion or pillow, the stopper is applied to the bag when empty, and being screwed down tight the valve-stem C is slightly screwed in sufficiently to unseat the valve D, and by applying the mouth to the nozzle 7L air is blown in until the bag is inflated, whereupon, while maintaining the air-pressure, the stem is turned by means of the head g to close the valve, thereby confining the air. In this respect the operation is the same as that of any ordinary inflatable air-cushion.

In order to use the bag as the reservoir of a fountain-syringe, it is filled with water and the stopper applied and screwed down tight, whereupon the stem C is screwed in to the position shown in Fig. 2 and the end of the syringe-tube E is drawn over the nozzle h, as shown. Thereupon by inverting the bag and elevating it the water that it contains is caused to flow out through the syringe. In so doing the water flows through ports f and through the bore of the tubular stem C into the rubber tube E.

In order to prevent any leakage of water by flowing between the screw-threads between the opening in the stopper and the exterior of the stem G, I provide a packing-washer j, which, when the stem is screwed fully in, is compressed between the head g or any suitable flange or collar on the tubular stem and the end of the stopper, thereby making a tight joint.

The stopper B is screwed to the thimble c with a right-hand thread; but the stem C is screwed within the stopper by means of a lefthand thread. This is an important provision for two reasons: First, habit has made it second nature to almost every one to turn ascrew valve or faucet to the right in order t0 close it, while with a right-hand thread it would be necessary to turn the stem C to the left in order to close the valve; but by using a lefthand thread the valve is closed when it is turned in the direction in which it will instinctively be turned. Second, if the stem had a right-hand thread and were turned to the left to seat the valve D the final twist given Vto tighten this valve against its seat would be of, and consequently has outside threads,and

the thimble is provided with a separate packing d instead of utilizing the one rubber washer d as the packing both between the stopper and the thimble and between the stopper and the valve D, as in the construction first described. I have also shown in this figl ure the packing-ring j (here lettered j) as carried in the top of the stopper-head in lieu of being carried on the exterior of the stem C.

In this figure, also, the pivoted handle z' is omitted and projecting arms t" are substituted as means for facilitating the screwing in of the stopper.

My invention provides a very simple and convenient construction, whereby any ordinary rubber water-bag may be used also as a fountain-syringe and, if desired, as an aircushion, and this without the addition of any interchangeable parts, which are liable to be mislaid or lost.

I make no claim to a combined water-bag and fountain-syring, but claim -only my improved construction of valve-stopper as hereinafter deiined.

I claim as my invention the following-defined novel features, substantially as hereinbefore specified, namely:

l. Astopper for water-bags, having a threaded opening through it, combined with a threaded tubular valve-stem passing through said opening, having a head by which to turn it and having on its inner end within said stopper a valve-disk adapted by screwing out said stem to seat itself against the inner side of the stopper and thereby close said opening. I

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2. A stopper for water-bags, having a righthand thread for attaching it to the neck of the bag and an opening through it with a lefthand thread, combined with a left-threaded tubular Valve-stem passing through said opening and having on its inner end a Valve-disk adapted to seat itself against the inner side of the stopper to close said opening, whereby by turning the stem to the right it screws outwardly and seats said Valve-disk and the seating thereof tends to tighten the attachment ot the stopper.

3. Astopper for water-bags, having a threaded opening through it, combined with a threaded tubular Valve-stem passing through said opening, having on its outer end a nozzle adapted for the attachment of a syringe-tube and on its inner end a valve-disk, whereby by screwing said stem outwardly said Valve-disk seats against the inner side of the stopper and closes the outlet through said opening and by screwing the stem inwardly and applying a syringetube to the nozzle thereof the Valve is opened and water may tiow out through said stem and syringe-tube, thereby converting the water-bag into a fountain-syringe.

4. Astopper for water-bags,having a threaded opening through it and constructed with a valve-seat atthe inner end of said opening and with a shoulder at the outer end of said opening, combined with a threaded tubular Valve-stem passing through said opening, having on its outer end a nozzle for the attachment of a syringe-tube and ashoulder for engagement with said shoulder on the stopper and on its inner end a valve-disk adapted to seat against said Valve-seat in the stopper to close said opening when the stem is screwed out, and a packing-ring surrounding said stem, interposed between said shoulders on the stem and stopper and adapted to be compressed between them when the stopper is screwed fully in for use with a syringe, whereby the leakage of water around the stem is prevented in either position of the latter.

5. A stopper for hot-water bottles, having a threaded opening through it, combined with a threaded valve-stem passing through and irremovable from said opening, said stern constructed to leavea conduit through said opening, and a Valve carried by said stern and adapted to close said opening and thereby to prevent a flow through said conduit.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses. v

, GEORGE H. F. SCHRADER.

Witnesses:

ARTHUR C. FRASER, CHARLES K. FRASERs 

